English verb conjugation
CAN DISAGREE

Regular verb: disagree - disagreed - disagreed

Affirmation

Simple form	V-ing form
I can disagree you can disagree he can disagree we can disagree you can disagree they can disagree	I can be disagreeing you can be disagreeing he can be disagreeing we can be disagreeing you can be disagreeing they can be disagreeing
Perfect	V-ing perfect
I can have disagreed you can have disagreed he can have disagreed we can have disagreed you can have disagreed they can have disagreed	I can have been disagreeing you can have been disagreeing he can have been disagreeing we can have been disagreeing you can have been disagreeing they can have been disagreeing

Negation

Simple form	V-ing form
I can't disagree you can't disagree he can't disagree we can't disagree you can't disagree they can't disagree	I can't be disagreeing you can't be disagreeing he can't be disagreeing we can't be disagreeing you can't be disagreeing they can't be disagreeing
Perfect	V-ing perfect
I can't have disagreed you can't have disagreed he can't have disagreed we can't have disagreed you can't have disagreed they can't have disagreed	I can't have been disagreeing you can't have been disagreeing he can't have been disagreeing we can't have been disagreeing you can't have been disagreeing they can't have been disagreeing

Interrogative form

Simple form	V-ing form
can I disagree? can you disagree? can he disagree? can we disagree? can you disagree? can they disagree?	can I be disagreeing? can you be disagreeing? can he be disagreeing? can we be disagreeing? can you be disagreeing? can they be disagreeing?
Perfect	V-ing perfect
can I have disagreed? can you have disagreed? can he have disagreed? can we have disagreed? can you have disagreed? can they have disagreed?	can I have been disagreeing? can you have been disagreeing? can he have been disagreeing? can we have been disagreeing? can you have been disagreeing? can they have been disagreeing?

Interro-negative form

Simple form	V-ing form
can't I disagree? can't you disagree? can't he disagree? can't we disagree? can't you disagree? can't they disagree?	can't I be disagreeing? can't you be disagreeing? can't he be disagreeing? can't we be disagreeing? can't you be disagreeing? can't they be disagreeing?
Perfect	V-ing perfect
can't I have disagreed? can't you have disagreed? can't he have disagreed? can't we have disagreed? can't you have disagreed? can't they have disagreed?	can't I have been disagreeing? can't you have been disagreeing? can't he have been disagreeing? can't we have been disagreeing? can't you have been disagreeing? can't they have been disagreeing?